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Developer Guide

Forking and Cloning

Fork this repository on GitHub, and clone locally with git clone.

Build Tools

This project contains a collection of tools to build, test and release OpenSearch and OpenSearch Dashboards.

Install Prerequisites

Pyenv

Use pyenv to manage multiple versions of Python. This can be installed with pyenv-installer on Linux and MacOS, and pyenv-win on Windows.

curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash

Python 3.7

Python projects in this repository use Python 3.7. See the Python Beginners Guide if you have never worked with the language.

$ python3 --version
Python 3.7.11

If you are using pyenv.

pyenv install 3.7.12 # use 3.7.9 on Windows, the latest at the time of writing this
pyenv global 3.7.12

Pipenv

This project uses pipenv, which is typically installed with pip install --user pipenv. Pipenv automatically creates and manages a virtualenv for your projects, as well as adds/removes packages from your Pipfile as you install/uninstall packages. It also generates the ever-important Pipfile.lock, which is used to produce deterministic builds.

$ pip install pipenv

$ pipenv --version
pipenv, version 19.0

On Windows, run pyenv rehash if pipenv cannot be found. This rehashes pyenv shims, creating a pipenv file in /.pyenv/pyenv-win/shims/.

NVM and Node

Install nvm to use the Node 14.18.2 version as it is required

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash
nvm install v14.18.2

Yarn

Yarn is required for building and running the OpenSearch Dashboards and plugins

npm install -g yarn

Install Dependencies

Install dependencies.

$ pipenv install
Installing dependencies from Pipfile.lock (1f4869)...
 🐍  ▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉ 0/0 — 00:00:00
To activate this project's virtualenv, run pipenv shell.
Alternatively, run a command inside the virtualenv with pipenv run.

Run Tests

This project uses pytest to ensure Python code quality. See tests.

$ pipenv run pytest
2 passed in 02s

$ ./gradlew test

> Task :test
BUILD SUCCESSFUL in 7s
3 actionable tasks: 1 executed, 2 up-to-date

Build OpenSearch

Try running ./build.sh. It should complete and show usage.

$ ./build.sh 
Installing dependencies in . ...
Installing dependencies from Pipfile.lock (41aca1)…
 🐍  ▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉ 14/14 — 00:00:01
To activate this project's virtualenv, run the following:
 $ pipenv shell
Running ./src/run_build.py ...
usage: build.sh [-h] [-s] [-c COMPONENT] [--keep] manifest
build.sh: error: the following arguments are required: manifest

Code Linting

This project uses a pre-commit hook for linting Python code and YAML files.

$ pipenv run pre-commit install
$ pipenv run pre-commit run --all-files

Pre-commit hook will run isort, flake8, mypy and pytest before making a commit.

This project uses isort to ensure that imports are sorted, and flake8 to enforce code style.

$ pipenv run flake8
./src/assemble_workflow/bundle_recorder.py:30:13: W503 line break before binary operator

Use isort . to fix any sorting order.

$ pipenv run isort .
Fixing tests/system/test_arch.py

Use black to auto-format your code.

$ pipenv run black .
All done! ✨ 🍰 ✨
23 files left unchanged.

This project uses yamllint to enforce formatting in YAML files.

Use yamlfix to auto-format your YAML files.

$ git status -s | grep -e "[MA?]\s.*.y[a]*ml" | xargs pipenv run yamlfix

If your code isn't properly formatted, don't worry, a CI workflow will make sure to remind you.

Type Checking

This project uses mypy as an optional static type checker.

pipenv run mypy .
src/assemble.py:14: error: Cannot find implementation or library stub for module named "assemble_workflow.bundle"

Code Coverage

This project uses codecov for code coverage. Use pipenv run codecov to run codecov locally.

$ pipenv run coverage run -m pytest
47 passed in 5.89s

$ pipenv run coverage report
TOTAL 23491 12295 48%

Pre-Commit Cheatsheet

The pre-commit hook checks for imports, type, style and test.

pipenv run pre-commit run --all-files

Auto-fix format and sort imports by running.

git status -s | grep -e "[MA?]\s.*.py" | cut -c4- | xargs pipenv run black
pipenv run isort .

Jenkins Pipelines and Shared Libraries

This project contains Jenkins pipelines and Jenkins shared libraries that execute the tools that build OpenSearch and OpenSearch Dashboards.

Install Prerequisites

Java

Use Java 11 for Jenkins jobs CI. This means you must have a JDK 11 installed with the environment variable JAVA_HOME referencing the path to Java home for your JDK installation, e.g. JAVA_HOME=/usr/lib/jvm/jdk-11. Download Java 11 from here.

Run Tests

This project uses JenkinsPipelineUnit to unit test Jenkins pipelines and shared libraries. See tests/jenkins.

$ ./gradlew test

> Task :test
BUILD SUCCESSFUL in 7s
3 actionable tasks: 1 executed, 2 up-to-date

Regression Tests

Jenkins workflow regression tests typically output a .txt file into tests/jenkins/jobs. For example, TestHello.groovy executes Hello_Jenkinsfile and outputs Hello_Jenkinsfile.txt. If the job execution changes, the regression test will fail.

  • To update the recorded .txt file run ./gradlew test -info -Ppipeline.stack.write=true or update its value in gradle.properties.

  • To run a specific test case, run ./gradlew test -info -tests=TestCaseClassName

Tests for jenkins job

Each jenkins job should have a test case associated with it. Eg: TestSignStandaloneArtifactsJob.groovy

  • Save the regression file for the jenkins-job in tests/jenkins/jenkinsjob-regression-files/<job-name>/<job-filename>
  • All tests for jenkins job should extend BuildPipelineTest.groovy
  • All tests should have a setUp() which is used to set the variables associated with the job
  • Add setups for all libraries used in the job using this.registerLibTester with appropriate values (Eg: TestDataPrepperDistributionArtifacts) in setUp() before super.setUp() is called.

Tests for jenkins libraries

Lib Tester

Each jenkins library should have a lib tester associated with it. Eg: SignArtifactsLibTester

  • Library tester should extend LibFunctionTester.groovy
  • implement void configure(helper, bindings) method which sets up all the variables used in the library
    • Note: This will not include the variables set using function arguments
  • implement void libFunctionName(). This function will contain the name of function.
  • implement void parameterInvariantsAssertions(). This function will contain assertions verifying the type and accepted values for the function parameters
  • implement void expectedParametersMatcher(). This function will match args called in the job to expected values from the test
Library Test Case

Each jenkins library should have a test case associated with it. Eg: TestSignArtifacts

Testing in Jenkins

Make your code changes in a branch, e.g. jenkins-changes, including to any of the above jobs. Create a pipeline in Jenkins with the following settings.

  • GitHub Project: https://github.com/[your username]/opensearch-build/.
  • Pipeline repository URL: https://github.com/[your username]/opensearch-build.
  • Branch specifier: refs/heads/jenkins-changes.
  • Script path: tests/jenkins/jobs/Build_DryRun_Jenkinsfile

You can now iterate by running the job in Jenkins, examining outputs, and pushing updates to GitHub.